Capture changes at the old db and stream them to your own database (if possible). Here's how to do this with Kafka and Postgres: https://www.confluent.io/blog/

Capture changes at the old db and stream them to your own database (if possible). Here's how to do this with Kafka and Postgres: https://www.confluent.io/blog/bottled-water-real-time-integration-of-postgresql-and-kafka/ https://www.confluent.io/blog/bottled-water-real-time-integr...